Clean and jerk


The clean and jerk is a composite of two weightlifting movements, most often performed with a barbell: the clean and the jerk. During the clean, the lifter moves the barbell from the floor to a racked position across the deltoids, without resting fully on the clavicles. During the jerk, the lifter raises the barbell to a stationary position above the head, finishing with straight arms and legs, and the feet in the same plane as the torso and barbell.

An image series showing the different movements involved in the clean and jerk

Of the several variants of the lift, the most common is the Olympic clean and jerk, which, with the snatch, is contested in Olympic weightlifting events.

Clean


Finishing position of a clean

To execute a clean, a lifter grasps the barbell just outside the legs, typically using a hook grip. Once the barbell is above the knees, the lifter extends explosively, raising the bar as high as possible before quickly dropping into a squat and receiving it in a "racked" position in front of the neck and resting on the shoulders. To complete the clean, the lifter stands, often propelling the bar upward from the shoulders slightly as the erect position is attained and shifting the grip slightly wider and the feet slightly closer together in preparation for the jerk.[1]

Jerk


Naim Süleymanoğlu sets a world record clean and jerk of 190 kg at the 1988 Summer Olympics.
Zulfiya Chinshanlo, World Champion 2009 in the 53 kg class performing the jerk portion of the lift

The jerk begins from the "front rack" position, which is the finishing position of the clean. The lifter dips a few inches by bending the knees, keeping the back vertical, and then explosively extends the knees, propelling the barbell upward off the shoulders, and then quickly dropping underneath the bar by pushing upward with the arms and splitting the legs into a lunge position, one forward and one back. The bar is received overhead on straight arms, and, once stable, the lifter recovers from the split position, bringing the feet back into the same plane as the rest of the body.

Variants


Jerk

There are three common variants of the jerk. In the split jerk, the lifter dips down their hips and propels the barbell upward by performing a short jump. The lifter then 'splits' their legs and catches the bar with straight arms above their head. In the power jerk, the lifter performs the same dip and jump movement but unlike the split jerk the lifter catches the barbell in a partial squat position. The squat jerk however, it is much like the power jerk in how the lifter catches the barbell in a squat position but unlike the power jerk, the lifter catches the barbell in a full squat position with the barbell locked out above their head.

Clean

The power clean, a weight training exercise not used in competition,[2] refers to any variant of the clean in which the lifter does not catch the bar in a full squat position (commonly accepted as thighs parallel to the floor or below). The hang clean, another weight training exercise, begins with the barbell off the ground, hanging from the arms. Both power and hang cleans are considered to be ideal for sports conditioning; as they are both total body exercises that have been known to increase neuromuscular co-ordination and core stability.

The continental clean involves lifting the bar from the floor to the final clean position by any method of the lifter's choosing so long as the bar is not upended and does not touch the ground. The bar may be rested on the legs, stomach, or belt. Hands may be removed and replaced.[3] The continental clean plays a special role in strongman training, where the use of an axle bar makes the additional steps of a continental clean necessary.

World records


Source:[4]

Men

Weight ClassNameLift
55 kgOm Yun Chol166 kg (366 lb)
61 kgEko Yuli Irawan174 kg (384 lb)
67 kgPak Jong-ju188 kg (414 lb)
73 kgShi Zhiyong198 kg (437 lb)
81 kgLu Xiaojun207 kg (456 lb)
89 kgWorld standard216 kg (476 lb)
96 kgTian Tao231 kg (509 lb)
102 kgWorld standard231 kg (509 lb)
109 kgRuslan Nurudinov241 kg (531 lb)
109+ kgLasha Talakhadze 264 kg (582 lb)1

Women

Weight ClassNameLift
45 kgWorld standard108 kg (238 lb)
49 kgMirabai Chanu119 kg (262 lb)
55 kgLiao Qiuyun129 kg (284 lb)
59 kgKuo Hsing-chun140 kg (310 lb)
64 kgDeng Wei145 kg (320 lb)
71 kgZhang Wangli152 kg (335 lb)
76 kgZhang Wangli156 kg (344 lb)
81 kgWorld standard158 kg (348 lb)
87 kgWorld standard164 kg (362 lb)
87+ kgLi Wenwen187 kg (412 lb)

1 This is the official world record for the clean and jerk in the men's 109 kg+ category; the highest weight ever lifted in the clean and jerk is 266 kilograms (586 lb) in 1988 by Leonid Taranenko of the Soviet Union, but this is no longer considered a world record by the International Weightlifting Federation due to the restructuring of weight classes in 1993, 1998 and 2018.[5]

See also


References


  1. Everett, Greg (2012). Olympic weightlifting for sports. [Sunnyvale, CA]: Catalyst Athletics. ISBN 9780980011142.
  2. https://chineseweightlifting.com/how-to-power-clean/
  3. "section A21". Official Rulebook of the USAWA (PDF) (8th ed.). Al Myers. 2014.
  4. "Senior Men's World Records". www.iwf.net.
  5. "IWF eliminates World Standards from World Record list".